An Afghan Commandos stands guard while an Afghan Air Force helicopter flies past during a combat training exercise at the Shorab Military Camp in Lashkar Gah in the Afghan province of Helmand. AFP
An Afghan Commandos stands guard while an Afghan Air Force helicopter flies past during a combat training exercise at the Shorab Military Camp in Lashkar Gah in the Afghan province of Helmand. AFP

Afghan army helicopter crashes killing up to 25